Antiskidding protector.



G. W. BIERER.

ANTISKIDDING PROTECTOR.

APPLIOATION FILED JULY 15. 1909.

Patented Sept. 6, 1910. 1

o 2 O a a M GEORGE W. BIRTH-ER, OF PITTSBURG, YENNSYLVANIA.

ANTISKIDDING PROTECTO Specification of Letters Patent. Application filedJuly 15, 1909. Serial No. 507,835. I

Patented Sept. 6, 1910.

To all whom it may concern.

Be. it known that I, GEORGE W. Brenna, a citizen of the United States ofAmerica, 'residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inAntiskidding Protectors, of which same time preventmgthe tires frombeing punctured by glass, sharp stones or irregularities in a road.

Another object of-t-he invention is to provide a tread for rubber tiredwheels that will not interfere with the pneumatic cushion properties ofthe'wheel.

A fiurther object of the invention is to provide a treadconstructed toeliminate noise and reduce the maintenance expense in connection with-amotor driven vehicle.

These and such other objects as may hereinafter appear are obtained by adevice that will be hereinafter considered in detail and then claimed.

, [Reference will now be had to the drawings wherein is illustrated apreferred embodiment of the invention; but it is to be understood that te structural elements thereof are susceptib e to change withoutdeparting from the spirit of the invention.

In the drawings, Figure 1 is a side elevation of t-het'ge provided withmy improved tread. 'Fig. is a lan of the same. Fi 3 line I enlargedcross-sectional view of the armor aniidlayers. l

y improved tread is constructed of light and durable metal shaped toprovide acirciilar tread or band 1 having a central angular peripheralenlargement 2, said tread or band being arched in cross section toconform to thetrcad or exposed surface of a tire 3.

The enlargement 2 is provided throughout with staggeredly arrangedintcriorly threaded sockets 4 to receive the threaded shanks 5 ofanti-skiddin pins or buttons 6, which are preferably diamond-shaped inplan, thus allowing a spanner wrench or similar instrument to be used torotate the pins or buttons 6.

Riveted or otherwise secured to the tread or band 1, as at 7 is a pieceof canvas 8, and interposed between the band 1 and the canvas 8 is anasbestos filler 9. The canvas 8 is emplo cd-to prevent the band 1 frominjuring t e tire 3, while the asbestos filler 9 prevents heat fromaffecting and deteriorating the composition of the tire.

The edges of the band 1 are offset, as at 10 to receive the ends ofstraps 11 which are riveted to'the band 1, as at 12. Three sets of thesestraps are equally spaced relative to' the band 1 and each set of strapscpnnected by a buckle 13 in order that the trend or band 1 will befirmly held upon the tire 3. It is in connection with the straps 11 thatI reserve the right to use any number necessary, or to entirelyeliminate the straps. It is ap arent that when the tire 3 is collapsed tat it can easily be placed within the band 1 and when blown up or filledwith air it will firmly hold'the tread or hand without the use ofstraps.

Havingnow described my invention, what I claim as new is:

An armor for pneumatic tires comprising a' band having acircumferentially extending peripheral enlargement positioned at a pointremoved from each side and ed e of the band whereby the band at eachside of the enlargement will be of less thickness than said enlargement,said enlargement provided throughout with two circumferentiallyextending series of threaded sockets of a depth less than the thicknessof the enlargemeut, each series arranged 111 proximity toan edgeof theenlargement, a headed pin havlng a screw threaded shank detachablyengaging iii-each of said sockets, the heads vas for connecting thebandand canvas toof said pins abutting against'sajd e'nlargegather. v 10went, an asbestos filler arranged against the In tGStiHlOHYKVhBIQOf.[vafiix my signature inner face of said band, a canvas str p L2 0- thepresence (if-two Witnesses.

5 sitione'd against said asbestos fi11e1',-a.nd a GEORGE W. BIERER; v

circumferentiallyextending series of hold- Witnesses: I i

fast devices extending through "reduod por- MAX H. SROLOVITZ, ti'ons' ofthe band and the asbestos and oan- DAVID FURNIER.

